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/*
* Copyright 2022 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef INK_STROKE_MODELER_INTERNAL_INTERNAL_TYPES_H_
#define INK_STROKE_MODELER_INTERNAL_INTERNAL_TYPES_H_
#include <ostream>
#include "ink_stroke_modeler/types.h"
namespace ink {
namespace stroke_model {
// This struct contains the position and velocity of the modeled pen tip at
// the indicated time.
struct TipState {
Vec2 position{0};
Vec2 velocity{0};
Time time{0};
};
std::ostream &operator<<(std::ostream &s, const TipState &tip_state);
// This struct contains information about the state of the stylus. See the
// corresponding fields on the Input struct for more info.
struct StylusState {
float pressure = -1;
float tilt = -1;
float orientation = -1;
};
bool operator==(const StylusState &lhs, const StylusState &rhs);
std::ostream &operator<<(std::ostream &s, const StylusState &stylus_state);
////////////////////////////////////////////////////////////////////////////////
// Inline function definitions
////////////////////////////////////////////////////////////////////////////////
inline bool operator==(const StylusState &lhs, const StylusState &rhs) {
return lhs.pressure == rhs.pressure && lhs.tilt == rhs.tilt &&
lhs.orientation == rhs.orientation;
}
inline std::ostream &operator<<(std::ostream &s, const TipState &tip_state) {
return s << "TipState: pos: " << tip_state.position
<< ", velocity: " << tip_state.velocity
<< ", time: " << tip_state.time << ">";
}
inline std::ostream &operator<<(std::ostream &s,
const StylusState &stylus_state) {
return s << "<Result: pressure: " << stylus_state.pressure
<< ", tilt: " << stylus_state.tilt
<< ", orientation: " << stylus_state.orientation << ">";
}
} // namespace stroke_model
} // namespace ink
#endif // INK_STROKE_MODELER_INTERNAL_INTERNAL_TYPES_H_
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